Date: Mon, 9 Jan 2006 14:30:08 -0800
Reply-To: David L Cassell <davidlcassell@MSN.COM>
Sender: "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From: David L Cassell <davidlcassell@MSN.COM>
Subject: Re: New to Correlation
Content-Type: text/plain; format=flowed
emoorthy@BLUESINGAPORE.COM wrote back:
> >****Thanks for provideing some context. But you pose two questions,
>which are not
> >identical: 1) You say you need to find the CORRELATION between the
> >2) You say you need to determine whether people in the same age group
> >repsond similarly.
>--- May be, I have put it on the wrong way! The main Idea is to find
>whether,similar aged people tend to response in a similar way to the
So you don't want 'correlation' but some sort of association.
> >****Another question is whether the letters in response (A through F) are
> >ordinal or nominal.
>--- They are Nominal. It indicates the answers which the user selects
>the survey.one problem is, a question can have multiple choices tooo.
I recommend that you get a statistician help you analyze these data using
CMH statistics, which you can get out of PROC FREQ.
> >****Yet another question is whether this is all of your data, or just a
> >portion of it, to show what you've got
>--- This is just a portion of the data. I've pulled the possible values,
>except the multiple answer records(since it may confuse more)
The 'multiple answer' part here may invalidate some statistical methods. So
you need to explain that part *very* carefully.
> >**** Yet anohter question is what the meaning of the variable 'question
> >field ID' is, and whay each person has multiple rows.
>--- Yes, Question field ID is the Question Number. The reason for multiple
>rows is,like shown below ,the data indicates that a person with Survey Id
>under the age group 23-29, has answered option D for Question1, answered C
>for question 2, and so on.
So you want to do this analysis for each Question Number separately.
Fortunately, SAS has BY statements to help you with that.
David L. Cassell
3115 NW Norwood Pl.
Corvallis OR 97330
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